Having trouble with Beetle PSX HW

So I used the Beetle PSX HW, but somehow I got an error related to Vulkan or something like that despite having used GL as my video driver.

Here’s how the debug looked like:

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Error occurred on Wednesday, May 6, 2020 at 18:15:34.

retroarch_debug.exe caused an Access Violation at location 000000001F27BC2E in module mednafen_psx_hw_libretro.dll Reading from location 0000000000000DB0.

AddrPC Params 000000001F27BC2E 0000000000000000 0000000000000000 0000000000000000 mednafen_psx_hw_libretro.dll!Vulkan::Device::sync_buffer_blocks 000000001F27D60E 000000000000000D 000000010000007F 000000480000011E mednafen_psx_hw_libretro.dll!Vulkan::Device::flush_frame 000000001F2C2117 000000490000011A 0000000000000000 0000000000000000 mednafen_psx_hw_libretro.dll!rsx_vulkan_prepare_frame 000000001F25D673 0001000000000003 0000000000000000 000000000A21003B mednafen_psx_hw_libretro.dll!retro_run 000000000043C709 0000000966AE0D20 0000000000000000 000000000A21003B retroarch_debug.exe!core_run [C:/msys64/home/buildbot/buildbot/windows_x64/retroarch/retroarch.c @ 30583] 000000000043B7E3 0000000000000000 0000000000000000 000000000022FD70 retroarch_debug.exe!runloop_iterate [C:/msys64/home/buildbot/buildbot/windows_x64/retroarch/retroarch.c @ 30013] 000000000041124D 0000000000000001 000000000A210000 0000000000000000 retroarch_debug.exe!rarch_main [C:/msys64/home/buildbot/buildbot/windows_x64/retroarch/retroarch.c @ 9847] 000000000058EF27 0000000000000001 000000000A210000 0000000000AB9DD0 retroarch_debug.exe!SDL_main [C:/msys64/home/buildbot/buildbot/windows_x64/retroarch/ui/drivers/qt/ui_qt_application.cpp @ 150] 0000000000ABB58E 0000000000000000 0000000000000021 0000000001A1EED8 retroarch_debug.exe!main_getcmdline 00000000004013B4 0000000000000000 0000000000000000 0000000000000000 retroarch_debug.exe!__tmainCRTStartup [E:/mingwbuild/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crtexe.c @ 339] 00000000004014DB 0000000000000000 0000000000000000 0000000000000000 retroarch_debug.exe!WinMainCRTStartup [E:/mingwbuild/mingw-w64-crt-git/src/mingw-w64/mingw-w64-crt/crt/crtexe.c @ 195] 000000007721570D 0000000000000000 0000000000000000 0000000000000000 kernel32.dll!BaseThreadInitThunk 000000007737385D 0000000000000000 0000000000000000 0000000000000000 ntdll.dll!RtlUserThreadStart

I previously played MGS and switched to Vulkan to solve the problem when using GL, but after some time playing the game I somehow couldn’t use the Beetle HW anymore. Any solutions?

It may have Vulkan saved in a core override somewhere. I would look in config/[corename]/[corename].cfg or just go check in the UI and save a new override.